<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .k {
            /* 加粗范围:100-900
                细体:100  ligter
                正常:400  normal
                加粗:700  bold
                更粗体:900  bolder
            */
            /* font-weight: 100; */
            font-weight: bold;
        }

        h1 {
            /* normal 可以让h1标签瘦身 */
            font-weight: normal;
        }

        .b {
            /* 
            倾斜:italic
            更倾斜:oblique
            正常:normal 
            */
            font-style: oblique;
        }
    </style>
</head>

<body>
    <p class="k">
        Lorem ipsum dolor sit amet consectetur adipisicing elit. Veritatis repudiandae sapiente nobis perferendis
        voluptate hic optio animi dignissimos doloremque accusantium! Provident ipsam officia temporibus reiciendis, a
        animi labore recusandae unde?
    </p>
    <p class="b">
        Lorem ipsum, dolor sit amet consectetur adipisicing elit. Tempore ab debitis nulla eius recusandae pariatur
        reiciendis possimus saepe similique illum quam commodi, porro sint molestiae iste quod odio sequi? Repudiandae.
    </p>
    <h1>我是大标题</h1>
</body>

</html>